Panasonic CT-27C8G Service Manual

Also see for CT27C8G - 27" COLOR TV: Operating manual Service manual

Panasonic CT-27C8G Service Manual Manual pdf 20 page image

A-BOARD TESTPOINTVOLTAGE+B2 TPD14 131.0 ± 2.0VSOUND C823 (+) 18.1 ± 1.0VSTB12V C827 (+) 12.8 ± 1.0 V220V TPA14 217 ± 10 VVERTICAL TPD8 27.4 ± 1.5V9V IC551 pin 3 9.0 ± 0.5V5V IC552 pin 3 5.0 ± 0.5V3.3V IC005 pin 2 3.3 ± 0.3VEHT CRT anode 29.25 ± 1.25kVHEATER JK351 H-HGND6.0 ± 0.24VHigh voltage check1. Select an active TV channel and confirm that horizontal is in sync.2. Adjust BRIGHTNESS and CONTRAST using PICTURE icon menuso video just disappears.3. Using a high voltage meter confirm that the high voltage is 29.25 ±1.25kV.11. Service mode (electronic adjustments)This receiver has electronic technology using the IC bus concept. It performs as a controlfunction and it replaces many mechanical controls. Instead of adjusting mechanical controlsindividually, many of the control functions are now performedby using “on screen displaymenu”. (The service adjustment mode).NOTEIt is suggested that the technician reads all the way through and understand the followingprocedure for entering/exiting the service adjustment mode; then proceed with the instructionsworking with the receiver. When becoming familiarwith the procedure, the flow chart for servicemode may be used as a quick guide.Quick entry to service modeWhen minor adjustments need to be done to the electronic controls, the method of entering theservice mode without removal of the cabinet back is as follows using the remote control:1. Select SET-UP icon and select CABLE mode.2. Select TIMER icon and set SLEEP time for 30 Min.3. Press “ACTION” twice to exit menus.4. Tune to the channel 124.20